answer please . I will mark as
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1
Answer:
H2O,N,CO2,NH3,H2S,H2,HCL,o2
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3
Answer:
chemical formula
- H2O
- N2
- CO2
- NH3
- SO2
- H2
- HCL
- O2
Element or compound
- compound
- element
- compound
- compound
- compound
- element
- compound
- element
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